No power on after display replacement - One (M8) Accessories

Hi all.
I got my M8's display broken and tried to fix it on my own, because my trusted service didnt.
After reassembling the Phone with the new display it didnt power on. Plugging the recharger turns the display on and the screen shows an empty battery logo with a lightning flash inside, but no green beam inside. The orange LED keeps flashing, not glowing.
Holding power/vol-up/down buttons make the display and LED turn off and on again. Shortly before the display turns off, the orange LED starts flashing green once for an instant.
Mounting my old broken display afterwards (which is wasted now) made my phone boot again once.
I'm not sure if this is conflicted to the battery, as I found the same synonyms according to a total discharge. When disassembling the phone I might have damaged the battery slightly.
Is there a way to functional check the battery?
I connected a resistor and a LED to the galaxy s5's batteries contacts and it illuminated, while the M8's battery is built completely different.
My MO was:
Firstly I disassembled my phone according to this video (its german).
After taking out the battery, I complete disassembled the front case, including camera/sim/sd card-unit etc. (the video didnt show disassembling that unit).
I bought a new front case unit including display, digitizer etc.
So I mounted all units on the new front case.
I'd be really encouraged! Thanks for help.
EDIT
I replaced the battery and the display once more. It works fine now.

I Have the same issue, did you buy a new battery?

Related

[Q] HTC ONE only showing charge screen after screen replacement

So I pulled off a surgical miracle for the HTC ONE and managed to replace the front LCD, and rear casing. Before I could lower this monstrosity of an electronic into the rear casing I checked all the wires, connectors etc.
Everything seemed fine. But during the final tests, seeing if it would turn on, The One refused to turn on. When plugged in, the ONE showcases a charge screen, resetting and showing the charge screen once more with the percentage and the red charge light. Otherwise the phone refuses to boot into its standard rom (not custom, just stock). I know that the LCD works for sure because it turned on.
Any idea what could have happened? Any and all help would be greatly appreciated.
ethopianprince said:
So I pulled off a surgical miracle for the HTC ONE and managed to replace the front LCD, and rear casing. Before I could lower this monstrosity of an electronic into the rear casing I checked all the wires, connectors etc.
Everything seemed fine. But during the final tests, seeing if it would turn on, The One refused to turn on. When plugged in, the ONE showcases a charge screen, resetting and showing the charge screen once more with the percentage and the red charge light. Otherwise the phone refuses to boot into its standard rom (not custom, just stock). I know that the LCD works for sure because it turned on.
Any idea what could have happened? Any and all help would be greatly appreciated.
Click to expand...
Click to collapse
Maybe you screwed the power button/cable?
alray said:
Maybe you screwed the power button/cable?
Click to expand...
Click to collapse
Thanks for the reply and Nah, all the cables weren't damaged. I replaced the daughter board and its working now. Thanks.

Note 3 failed to charge while the phone is off

The power button broke on my Note 3, i reassemble the phone hopping to fix the problem, i found out the small dome shape piece of metal is out of its place and there is no way to put it back, also there is a tiny piece of clear reddish plastic to cover that metal dome, i found the whole circuit in amazon and i ordered one.
i closed the phone back after connecting all connectors back, i did that very carefully.
when i connect the charger (the phone is off) a gray battery icon shows for a couple of seconds then the phone screen become bright white for few seconds then turned off, the charging LED indicator is off. usually the battery icon changes to green with 5 green dots underneath it indicating the phone is charging.
if i disconnect the charging cable and put it back nothing happened, if i disconnect and connect the battery then plug the charger, the gray icon an white screen scenario above happened again.
I remove the battery overnight and tried it this morning, i got the same behavior again.
any help is really appreciated.
Phone: unlock ATT note 3 with custom ROM.
WOW, am I the only lucky one with this problem???
I found out that the battery is really charging, but neither led nor the screen are indicating anything, I figured it out when i noticed the battery is worm,
Also i was able to manage to boot my device by connecting the charger while pressing the Volume down and home button, i was able to go to download mode then restart the phone using volume up.
the phone is charging fine when it is on.
Not sure about the main issue if it caused by the Power button or something else.
Update:
I have a bad ROM causing too many problem, I flashed to NC2 4.4.2 and every thing is working, no wonder why nobody has this issue.
Thanks,

[Q] [HELP] Red flashing LED, won't turn on, after battery change

Hey XDA!
Got a problem with my Xperia Z1. It was working fine before the battery swap, aside from a problem with the battery (failing to hold more than 5% charge), hence the swap.
But after removing the old battery and attaching the new one, the phone will not boot, and when plugged into a wall socket, it flashes the red LED in 1~ second intervals. The pow+volume up combination doesn't result in any changes or "3 vibrations", and it won't enter flashboot mode. When plugged into a Windows PC, it registers it being connected, but when the LED turns off, the "disconnected device" sound plays, and it does this every time the LED comes on then off again.
Worst part is that hooking the old battery up doesn't work either!
I'm fairly certain I'm royally screwed but I cannot see clearly why; I checked the phone and anywhere I touched, and I can't see anything wrong. It could be that I was sent a faulty battery replacement and it broke it, or I installed it slightly incorrectly that resulted in the same thing.
Has anyone got a potential solution or am I well and truly screwed?
Cheers!

Blinking Sensorbuttons after disassembly

Hy, a friend of mine brought me his Htc one m7 to fix various things.
I changed:
Display
Middleframe
backcover
daughterboard
earpiece
speaker
Atfer i was finished i tryed to power the phone on but only got blinking sensorbuttons.
I checked all the connections between the boards in the phone.
I checked the Proxymity sensor - it is connected and was working before.
I tryed to start it with Power + Voldown
the battery level was at about 50%
i tryed the trick with shining light on the prox sensor
After trying to power it on the mainboard got slightly warm (it was barely noticeable without the Backcover) and stayed warm until i unplugged the Battery. after that i have not tryed to power it on and it didnt get warm until i tryed to power it on again.
Anything else i can check?
Edit: phone was charging over night. No charge led and no powering on
EDIT2:
Found the fault - the new display is broken. it does boot but shows no picture. Because the phone is silent it didnt vibrate or make a sopund on boot.

Samsung amoled remains black, except if I remove the battery

My A51 fell into water. After i cleant it with 99% IPA, everything came back to life, except the screen.
The touch works, charging works... but the amoled remains black (even on bootup).
The only moment I saw something displayed on the screen is when I tried to power on the phone without the battery.
Of course it bootloops, but i can see a green tinted samsung logo for a quarter second (normally the screen remains completely black).
Here is the video of it : Video
This issue is very strange, I tried the screen with another motherboard (which also fell, but not in water), same result.
Anyone got ideas ?
Thanks
Hello blacktime2, your S10 once in the water you put it in rice for 24 hours then clean the usb-c port well. I think it still has humidity turn it off and put it in rice or with a hair dryer do not connect it to the mains especially not

Categories

Resources